Device and technique for minimizing risk of contamination by blo

Details Device and technique for minimizing risk of contamination by blo Device and technique for minimizing risk of contamination by blo

1976-09-03

1978-04-25

Yasko, John D.

Surgery

Truss

Perineal

128218R, 128DIG5, A61B 1900

Patent

active

040857379

ABSTRACT:
A method and apparatus for reducing the risk of contamination of individuals who handle a blood sampling needle and syringe subsequent to the taking of the sample. The apparatus includes a substantially tubular needle guard having an open end and a closed end and adapted to be fitted about the needle of the blood sampling syringe. A fluid impervious stopper or seal is affixed to the inner wall of the needle guard at a position intermediate its ends. The enclosed chamber between the seal and the closed end of the needle guard has been evacuated to a subatmospheric pressure. After the blood sample has been drawn, the user places the needle guard about the needle in such a fashion that the tip of the needle penetrates the seal so as to be enclosed within the vacuum chamber. A small amount of air or an air and blood mixture will then be drawn into the vacuum chamber from the syringe, and the entire unit may be thereaffter safely handled. The technician performing the blood analysis may utilize the needle guard to remove the needle from the syringe as a further precaution against contamination.

REFERENCES:
patent: 2551414 (1951-05-01), Burnside
patent: 2731012 (1956-01-01), Henderson
patent: 2772677 (1956-12-01), Ulert et al.
patent: 2896622 (1959-07-01), Huttermann
patent: 3162195 (1964-12-01), Dick
patent: 3382865 (1968-05-01), Worrall, Jr.
patent: 3734080 (1973-05-01), Petterson et al.

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